A method and system for using a single osd pixmap across multiple video raster sizes by using multiple headers

(19)

(11)

EP 1 154 643 A3

(12)	EUROPEAN PATENT APPLICATION

(88)	Date of publication A3:
	18.02.2004 Bulletin 2004/08

(43)	Date of publication A2:
	14.11.2001 Bulletin 2001/46

(21)	Application number: 01401147.2

(22)	Date of filing: 03.05.2001

(51)	International Patent Classification (IPC)⁷: H04N 5/45, G09G 1/16

(84)	Designated Contracting States:
	AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
	Designated Extension States:
	AL LT LV MK RO SI

(30)

Priority:

12.05.2000 US 204058 P

(71)	Applicant: Thomson Licensing S.A.
	92100 Boulogne-Billancourt (FR)

(72)	Inventors:
	Aneja, Charu Indianapolis, Indiana 46226 (US) Dinwiddie, Aaron H. Indianapolis, Indiana 46220 (US) Wiegand, Patrick J. Indianapolis, Indiana 46220 (US) Worell, Charles W. Carmel,Indiana 46219 (US)

(74)	Representative: Bonnans, Arnaud et al
	Thomson multimedia European Patent Operations 46, quai Alphonse Le Gallo 92648 Boulogne Cedex 92648 Boulogne Cedex (FR)

(54)	A method and system for using a single osd pixmap across multiple video raster sizes by using multiple headers

(57) Described is a TV system that uses a single pixmap (190) across multiple video rasters having different raster sizes. In general, the TV system uses at least two headers to select different portions of a single pixmap (190) to be displayed based on different raster sizes. Specifically, each of the two headers points to a single pixmap (190). In the TV system, the size of the central portion is fixed while the size of the sidepanel portion can be adjusted depending on the displaying mode. In response to different displaying modes, the TV system selectively invokes one of the two headers to select a respective portion to be displayed in the pixmap (190). By doing so, a single pixmap (190) can be used across multiple video rasters having different raster sizes.

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